{"id":"RUSTSEC-2026-0262","title":"`append-only-vec` 0.1.9 was removed from crates.io due to a malicious dependency","summary":"`append-only-vec` 0.1.9 was removed from crates.io due to a malicious dependency","severity":"none","vendor":"append-only-vec","product":"append-only-vec","ecosystem":"rust","affected":["append-only-vec >= 0.1.9, < 0.1.10-0"],"patched":["append-only-vec 0.1.10-0"],"published":"2026-08-20","updated":"2026-10-20","sourceUpdated":"2026-10-20T11:00:02.677736709Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/RUSTSEC-2026-0262","references":[{"url":"https://crates.io/crates/append-only-vec"},{"url":"https://rustsec.org/advisories/RUSTSEC-2026-0262.html"},{"url":"https://blog.rust-lang.org/2026/08/20/supply-chain-attack-on-arrayref"}],"tags":["osv","rust"],"ingestedAt":"2026-08-20T19:23:09.908Z","slug":"RUSTSEC-2026-0262","body":"## Overview\n\nA new version of the `append-only-vec` crate was published with a direct dependency\non `proc-macro1`, which would execute a malicious build script.\n\nThe compromised version of this crate was published on 2026-08-20, and was\nremoved approximately 107 minutes later.\n\nThe compromised crate version was used as part of a malware campaign targeted\nat users of `arrayref`, which was downloaded 2,285 times before being removed;\nsee [the `arrayref` advisory][arrayref-advisory] for more detail.\n\n[arrayref-advisory]: https://rustsec.org/advisories/RUSTSEC-2026-0260.html\n\n## Affected packages\n\n- `append-only-vec >= 0.1.9, < 0.1.10-0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `append-only-vec 0.1.10-0`","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}